SwrAA/1

• Description: control of motility, enhances sigD transcription
  
  

Gene name	swrAA
Synonyms	yvzD
Essential	no
Product	swarming motility protein
Function	essential for �swarming differentiation� on solid surfaces
MW, pI	13 kDa, 8.4
Gene length, protein length	336 bp, 112 aa
Immediate neighbours	minJ, ctpB
Gene sequence (+200bp)	Protein sequence
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Coordinates:

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

Additional information

This protein is functional in undomesticated strains of B.subtilis but not in laboratory strains, such as 168, because of a frameshift mutation. Therefore laboratory strains of B.subtilis are unable to swarm.

The frameshift in strain 168 is caused by a single insertion of an adenine in the codon for Tyr-12 which leads to the premature truncation of the protein in residue 13. In addition, the C-terminal section of swrAA was predicted to be an ORF (yvzD) by the genome project.

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cytoplasm (according to Swiss-Prot)

Database entries

• Structure:

• Swiss prot entry: O32266

• KEGG entry: BSU35230

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Cecilia Osera, Giuseppe Amati, Cinzia Calvio, Alessandro Galizzi
SwrAA activates poly-gamma-glutamate synthesis in addition to swarming in Bacillus subtilis.
Microbiology (Reading): 2009, 155(Pt 7);2282-2287
[PubMed:19389763] [WorldCat.org] [DOI] (P p)